Korea Eyes $70B Bond Inflows as Won Stability Holds Key

SINGAPORE — On a digital billboard nestled among the skyscrapers of Raffles Place, the words "KOSPI 6000" glowed red on Feb. 26. The display symbolized South Korea's return to global investors' radar after a prolonged absence.

Global investment bankers here agreed: Korean government bonds will be the next investment destination following equities. Attention is intensifying ahead of Korea's April inclusion in the World Government Bond Index (WGBI), the primary benchmark for institutional investors purchasing sovereign debt worldwide. The index covers bonds with a combined market capitalization of approximately $35 trillion.

Korea will be phased into the index over eight months starting in April, potentially attracting up to $70 billion (about 104 trillion won) in passive funds. Amid heightened financial market instability, this capital could lower 10-year government bond yields by up to 0.2 percentage points and reduce the won-dollar exchange rate by approximately 5%.

"Building efficient infrastructure opens the market's door, but fundamentals keep capital in place," said Keng Siang Ng, head of Asia-Pacific fixed income at State Street Global Advisors. "Managing volatile exchange rates and macroeconomic indicators within stable ranges is key to earning global investors' trust." He called for closer policy coordination between the Bank of Korea and the Ministry of Economy and Finance.

Japanese Capital Could Dominate Inflows

Experts projected inflows ranging from $40 billion (Barclays) to $70 billion (ING). Chandresh Jain, director of emerging market rates and FX strategy at BNP Paribas, offered a contrarian analysis.

While Japanese investors typically account for about 20% of WGBI-tracking funds, Jain estimated their actual influence on Korean bond inflows could reach 50-60%.

"Japanese investors are seeking alternatives due to fiscal risk concerns about Japanese government bonds," Jain said. "Combining $50 billion in WGBI inflows, $50 billion in National Pension Service strategic hedging, and repatriation of overseas assets by individuals, total 'buy won' demand could exceed $100 billion."

Samir Goel, head of Asia-Pacific research at Deutsche Bank, forecast that 10-year Korean government bond yields, currently around 3.6%, would fall to 3.1-3.2% by year-end, supported by this strong demand.

Leo Tay, head of Asia-Pacific trading at ING, said mechanical rebalancing alone from "real money" investors tracking the index could bring $50-70 billion in sustained capital inflows.

Attractive Carry Structure

Global macro funds already view Korean bonds as sufficiently attractive, experts said.

"With the Bank of Korea's policy rate at 2.50%, the 10-year government bond yield remains around 3.6%," Jain noted. This positive carry structure — where investment returns exceed funding costs — creates optimal conditions for global hedge funds employing leverage or relative value strategies.

However, investment patterns will vary by maturity. The 1-3 year segment may experience higher volatility due to domestic "money moves," while the 10-year-plus segment could see yield curve flattening as new demand from Japanese life insurers and global pension funds flows in.

Semiconductor Dependence Warrants Caution

Some experts urged a clear-eyed assessment of Korea's economic fundamentals. Beom-ki Son, economist at Barclays, acknowledged room for yields to fall 10-15 basis points but warned against data illusions.

"Korea's growth forecast of 2.1% this year drops to just 1.1% excluding semiconductors," Son said. "Optimism based solely on asset price gains is dangerous when growth drivers outside semiconductors have weakened." He emphasized the central bank must pursue more careful monetary policy considering vulnerable groups.

Currency Stability Paramount

Experts agreed that whether long-term capital actually takes root in Korea matters more than inflow figures.

"WGBI passive inflows will significantly offset domestic capital outflows exceeding $60 billion annually, marking a turning point in current and financial account imbalances," Goel said.

But he added one condition: "For global long-term investors, currency stability matters more than absolute yields. No matter how attractive rates are, long-term capital won't settle if exchange rates fluctuate wildly."

Sustainable capital inflows require not only attractive yields but also enhanced won predictability and stronger capital market fundamentals, he said.